<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>

    <div id="app">
        <h1>{{msg}}</h1>
    </div>


    <!-- 引入vue模块 -->
    <script type="module">
        import {createApp} from 'https://unpkg.com/vue@3/dist/vue.esm-browser.js';
        /*创建vue的应用实例*/
        createApp({
            data(){
                return{
                    //定义数据
                    msg : 'hello vue3'
                }
            }
        }).mount("#app");
    </script>
</body>
</html>